Sauter O, Henderson MA, Hofmann F, Goodman T, Alberti S, Angioni C, Appert K, Behn R, Blanchard P, Bosshard P, Chavan R, Coda S, Duval BP, Fasel D, Favre A, Furno I, Gorgerat P, Hogge J, Isoz P, Joye B, Lavanchy P, Lister JB, Llobet X, Magnin J, Mandrin P, Manini A
Centre de Recherches en Physique des Plasmas, Association Euratom-Confederation Suisse, EPFL, 1015 Lausanne, Switzerland.
Phys Rev Lett. 2000 Apr 10;84(15):3322-5. doi: 10.1103/PhysRevLett.84.3322.
A steady-state, fully noninductive plasma current has been sustained for the first time in a tokamak using electron cyclotron current drive only. In this discharge, 123 kA of current have been sustained for the entire gyrotron pulse duration of 2 s. Careful distribution across the plasma minor radius of the power deposited from three 0. 5-MW gyrotrons was essential for reaching steady-state conditions. With central current drive, up to 153 kA of current have been fully replaced transiently for 100 ms. The noninductive scenario is confirmed by the ability to recharge the Ohmic transformer. The dependence of the current drive efficiency on the minor radius is also demonstrated.
在托卡马克装置中，首次仅利用电子回旋电流驱动维持了稳态、完全无感应的等离子体电流。在此次放电中，在整个2秒的回旋管脉冲持续时间内维持了123千安的电流。来自三台0.5兆瓦回旋管的沉积功率在等离子体小半径上的仔细分布对于达到稳态条件至关重要。通过中心电流驱动，在100毫秒内最多有153千安的电流被完全短暂替代。通过给欧姆变压器再充电的能力证实了无感应方案。还展示了电流驱动效率对小半径的依赖性。
